Disentanglement of source and target and the laser quantum state.

@article{Noh2008DisentanglementOS,
  title={Disentanglement of source and target and the laser quantum state.},
  author={Changsuk Noh and Howard J. Carmichael},
  journal={Physical review letters},
  year={2008},
  volume={100 12},
  pages={120405}
}
Disentanglement of a laser source from its target qubit is proposed as a criterion establishing the laser quantum state as a coherent state. It is shown that the source-target density operator has a unique factorization in coherent states when the environmental record monitoring laser pump quanta is ignored. The source-target state conditioned upon the… CONTINUE READING